| Election Name: | 2018 Portsmouth City Council election |
| Country: | Portsmouth |
| Type: | Parliamentary |
| Ongoing: | No |
| Previous Election: | 2016 Portsmouth City Council election |
| Previous Year: | 2016 |
| Next Election: | 2019 Portsmouth City Council election |
| Next Year: | 2019 |
| Seats For Election: | 14 of 42 seats (One Third) to Portsmouth City Council |
| Majority Seats: | 22 |
| Election Date: | 3 May 2018 |
| Image1: | Con |
| Leader1: | Donna Jones |
| Leader Since1: | June 2014 |
| Leaders Seat1: | Hilsea |
| Party1: | Conservative Party (UK) |
| Last Election1: | 5 |
| Seats Before1: | 7 |
| Seats1: | 6 (19 total) |
| Seat Change1: | 1 |
| Popular Vote1: | 17,058 |
| Percentage1: | 37% |
| Swing1: | 9.7% |
| Leader2: | Gerald Vernon-Jackson |
| Leader Since2: | May 2004 |
| Leaders Seat2: | Milton |
| Party2: | Liberal Democrats (UK) |
| Last Election2: | 3 |
| Seats Before2: | 3 |
| Seats2: | 4 (16 total) |
| Seat Change2: | 1 |
| Popular Vote2: | 11,739 |
| Percentage2: | 25% |
| Swing2: | 4.3% |
| Leader4: | Stephen Morgan |
| Leader Since4: | October 2016 |
| Leaders Seat4: | Charles Dickens |
| Party4: | Labour Party (UK) |
| Last Election4: | 0 |
| Seats Before4: | 2 |
| Seats4: | 4 (5 total) |
| Seat Change4: | 3 |
| Popular Vote4: | 13,782 |
| Percentage4: | 32% |
| Swing4: | 8.1% |
| Image5: | UKIP |
| Leader5: | Colin Galloway |
| Leader Since5: | May 2014 |
| Leaders Seat5: | Nelson |
| Party5: | UK Independence Party |
| Last Election5: | 6 |
| Seats Before5: | 2 |
| Seats5: | 0 (0 total) |
| Seat Change5: | 2 |
| Popular Vote5: | 996 |
| Percentage5: | 2% |
| Swing5: | 13.0% |
| Council control | |
| Posttitle: | Council control after election |
| Before Election: | No overall control |
| After Election: | No overall control |
The 2018 Portsmouth City Council election took place on Thursday 3 May 2018 to elect members of Portsmouth City Council.
14 of 42 seats were contested during this elections within the unitary authority.
After this year's local elections, the composition of the council is now (compared to the situation immediately prior to the election):
| Party | Before Election | After Election | Change | |
|---|---|---|---|---|
| 20 | 19 | -1 | ||
| 15 | 16 | +1 | ||
| 2 | 6 | +4 | ||
| 2 | 1 | -1 | ||
| 2 | 0 | -2 | ||
| 0 | 0 | 0 | ||
The Statement of Persons Nominated was made on 6 April 2018 by Returning Officer David Williams.[1]
Following the elections, a Liberal Democrat minority administration was formed, with the support of Labour. This replaced the previous Conservative minority administration that had governed since 2014.[2]
1: After nominations were closed, Udy resigned from the Labour Party citing a lack of support from the local party while under investigation by the National Executive Committee.[3] [4]
2: Godier's share compared to his performance under UKIP label in 2014.